/* $Id: isdn_divertif.h,v 1.4.6.1 2001/09/23 22:25:05 kai Exp $
 *
 * Header for the diversion supplementary interface for i4l.
 *
 * Author    Werner Cornelius (werner@titro.de)
 * Copyright by Werner Cornelius (werner@titro.de)
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

/***********************************************************/
/* magic value is also used to control version information */
/***********************************************************/
#define DIVERT_IF_MAGIC 0x25873401
#define DIVERT_CMD_REG  0x00	/* register command */
#define DIVERT_CMD_REL  0x01	/* release command */
#define DIVERT_NO_ERR   0x00	/* return value no error */
#define DIVERT_CMD_ERR  0x01	/* invalid cmd */
#define DIVERT_VER_ERR  0x02	/* magic/version invalid */
#define DIVERT_REG_ERR  0x03	/* module already registered */
#define DIVERT_REL_ERR  0x04	/* module not registered */
#define DIVERT_REG_NAME isdn_register_divert

#ifdef __KERNEL__
#include <linux/isdnif.h>
#include <linux/types.h>

/***************************************************************/
/* structure exchanging data between isdn hl and divert module */
/***************************************************************/
typedef struct {
	ulong if_magic;		/* magic info and version */
	int cmd;		/* command */
	int (*stat_callback) (isdn_ctrl *);	/* supplied by divert module when calling */
	int (*ll_cmd) (isdn_ctrl *);	/* supplied by hl on return */
	char *(*drv_to_name) (int);	/* map a driver id to name, supplied by hl */
	int (*name_to_drv) (char *);	/* map a driver id to name, supplied by hl */
} isdn_divert_if;

/*********************/
/* function register */
/*********************/
extern int DIVERT_REG_NAME(isdn_divert_if *);
#endif
